1 /* 2 * Driver for Digigram pcxhr soundcards 3 * 4 * main header file 5 * 6 * Copyright (c) 2004 by Digigram <alsa@digigram.com> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 */ 22 23 #ifndef __SOUND_PCXHR_H 24 #define __SOUND_PCXHR_H 25 26 #include <linux/interrupt.h> 27 #include <sound/pcm.h> 28 29 #define PCXHR_DRIVER_VERSION 0x000804 /* 0.8.4 */ 30 #define PCXHR_DRIVER_VERSION_STRING "0.8.4" /* 0.8.4 */ 31 32 33 #define PCXHR_MAX_CARDS 6 34 #define PCXHR_PLAYBACK_STREAMS 4 35 36 #define PCXHR_GRANULARITY 96 /* transfer granularity (should be min 96 and multiple of 48) */ 37 #define PCXHR_GRANULARITY_MIN 96 /* transfer granularity of pipes and the dsp time (MBOX4) */ 38 39 struct snd_pcxhr; 40 struct pcxhr_mgr; 41 42 struct pcxhr_stream; 43 struct pcxhr_pipe; 44 45 enum pcxhr_clock_type { 46 PCXHR_CLOCK_TYPE_INTERNAL = 0, 47 PCXHR_CLOCK_TYPE_WORD_CLOCK, 48 PCXHR_CLOCK_TYPE_AES_SYNC, 49 PCXHR_CLOCK_TYPE_AES_1, 50 PCXHR_CLOCK_TYPE_AES_2, 51 PCXHR_CLOCK_TYPE_AES_3, 52 PCXHR_CLOCK_TYPE_AES_4, 53 }; 54 55 struct pcxhr_mgr { 56 unsigned int num_cards; 57 struct snd_pcxhr *chip[PCXHR_MAX_CARDS]; 58 59 struct pci_dev *pci; 60 61 int irq; 62 63 /* card access with 1 mem bar and 2 io bar's */ 64 unsigned long port[3]; 65 66 /* share the name */ 67 char shortname[32]; /* short name of this soundcard */ 68 char longname[96]; /* name of this soundcard */ 69 70 /* message tasklet */ 71 struct tasklet_struct msg_taskq; 72 struct pcxhr_rmh *prmh; 73 /* trigger tasklet */ 74 struct tasklet_struct trigger_taskq; 75 76 spinlock_t lock; /* interrupt spinlock */ 77 spinlock_t msg_lock; /* message spinlock */ 78 79 struct semaphore setup_mutex; /* mutex used in hw_params, open and close */ 80 struct semaphore mixer_mutex; /* mutex for mixer */ 81 82 /* hardware interface */ 83 unsigned int dsp_loaded; /* bit flags of loaded dsp indices */ 84 unsigned int dsp_version; /* read from embedded once firmware is loaded */ 85 int board_has_analog; /* if 0 the board is digital only */ 86 int mono_capture; /* if 1 the board does mono capture */ 87 int playback_chips; /* 4 or 6 */ 88 int capture_chips; /* 4 or 1 */ 89 int firmware_num; /* 41 or 42 */ 90 91 struct snd_dma_buffer hostport; 92 93 enum pcxhr_clock_type use_clock_type; /* clock type selected by mixer */ 94 enum pcxhr_clock_type cur_clock_type; /* current clock type synced */ 95 int sample_rate; 96 int ref_count_rate; 97 int timer_toggle; /* timer interrupt toggles between the two values 0x200 and 0x300 */ 98 int dsp_time_last; /* the last dsp time (read by interrupt) */ 99 int dsp_time_err; /* dsp time errors */ 100 unsigned int src_it_dsp; /* dsp interrupt source */ 101 unsigned int io_num_reg_cont; /* backup of IO_NUM_REG_CONT */ 102 unsigned int codec_speed; /* speed mode of the codecs */ 103 unsigned int sample_rate_real; /* current real sample rate */ 104 int last_reg_stat; 105 int async_err_stream_xrun; 106 int async_err_pipe_xrun; 107 int async_err_other_last; 108 }; 109 110 111 enum pcxhr_stream_status { 112 PCXHR_STREAM_STATUS_FREE, 113 PCXHR_STREAM_STATUS_OPEN, 114 PCXHR_STREAM_STATUS_SCHEDULE_RUN, 115 PCXHR_STREAM_STATUS_STARTED, 116 PCXHR_STREAM_STATUS_RUNNING, 117 PCXHR_STREAM_STATUS_SCHEDULE_STOP, 118 PCXHR_STREAM_STATUS_STOPPED, 119 PCXHR_STREAM_STATUS_PAUSED 120 }; 121 122 struct pcxhr_stream { 123 struct snd_pcm_substream *substream; 124 snd_pcm_format_t format; 125 struct pcxhr_pipe *pipe; 126 127 enum pcxhr_stream_status status; /* free, open, running, draining, pause */ 128 129 u_int64_t timer_abs_periods; /* timer: samples elapsed since TRIGGER_START (multiple of period_size) */ 130 u_int32_t timer_period_frag; /* timer: samples elapsed since last call to snd_pcm_period_elapsed (0..period_size) */ 131 u_int32_t timer_buf_periods; /* nb of periods in the buffer that have already elapsed */ 132 int timer_is_synced; /* if(0) : timer needs to be resynced with real hardware pointer */ 133 134 int channels; 135 }; 136 137 138 enum pcxhr_pipe_status { 139 PCXHR_PIPE_UNDEFINED, 140 PCXHR_PIPE_DEFINED 141 }; 142 143 struct pcxhr_pipe { 144 enum pcxhr_pipe_status status; 145 int is_capture; /* this is a capture pipe */ 146 int first_audio; /* first audio num */ 147 }; 148 149 150 struct snd_pcxhr { 151 struct snd_card *card; 152 struct pcxhr_mgr *mgr; 153 int chip_idx; /* zero based */ 154 155 struct snd_pcm *pcm; /* PCM */ 156 157 struct pcxhr_pipe playback_pipe; /* 1 stereo pipe only */ 158 struct pcxhr_pipe capture_pipe[2]; /* 1 stereo pipe or 2 mono pipes */ 159 160 struct pcxhr_stream playback_stream[PCXHR_PLAYBACK_STREAMS]; 161 struct pcxhr_stream capture_stream[2]; /* 1 stereo stream or 2 mono streams */ 162 int nb_streams_play; 163 int nb_streams_capt; 164 165 int analog_playback_active[2]; /* Mixer : Master Playback active (!mute) */ 166 int analog_playback_volume[2]; /* Mixer : Master Playback Volume */ 167 int analog_capture_volume[2]; /* Mixer : Master Capture Volume */ 168 int digital_playback_active[PCXHR_PLAYBACK_STREAMS][2]; /* Mixer : Digital Playback Active [streams][stereo]*/ 169 int digital_playback_volume[PCXHR_PLAYBACK_STREAMS][2]; /* Mixer : Digital Playback Volume [streams][stereo]*/ 170 int digital_capture_volume[2]; /* Mixer : Digital Capture Volume [stereo] */ 171 int monitoring_active[2]; /* Mixer : Monitoring Active */ 172 int monitoring_volume[2]; /* Mixer : Monitoring Volume */ 173 int audio_capture_source; /* Mixer : Audio Capture Source */ 174 unsigned char aes_bits[5]; /* Mixer : IEC958_AES bits */ 175 }; 176 177 struct pcxhr_hostport 178 { 179 char purgebuffer[6]; 180 char reserved[2]; 181 }; 182 183 /* exported */ 184 int pcxhr_create_pcm(struct snd_pcxhr *chip); 185 int pcxhr_set_clock(struct pcxhr_mgr *mgr, unsigned int rate); 186 int pcxhr_get_external_clock(struct pcxhr_mgr *mgr, enum pcxhr_clock_type clock_type, int *sample_rate); 187 188 #endif /* __SOUND_PCXHR_H */ 189